int readFile(int port)
{
ControlPacket packet;
while(!getControlPacket(port, &packet)){}
//puts("\nGot beginning packet");
if(packet.end != CONTROL_PACKET_BEGIN){
printf("Error: didn't receive expected start control package\n");
return -1;
}
int file = open(packet.filename+1, O_CREAT|O_TRUNC|O_WRONLY, 0666);
free(packet.filename);
DataPacket dataPacket;
unsigned char expectedSequenceNumber = 0;
float percentage;
int acum = 0;
char * proBar = updateProgressBar(0, packet.size, &percentage);
while(getDataPacket(port, &dataPacket) != E_NOTDATA){
if (expectedSequenceNumber != dataPacket.sequenceNumber){
printf("Error in packet sequence: expected packet no %u and got packet no %u\n", expectedSequenceNumber, dataPacket.sequenceNumber);
exit(-1);
}
expectedSequenceNumber++;
expectedSequenceNumber %= 255;
//printf("Received data packet with size %d\n", dataPacket.size);
write(file, dataPacket.data, dataPacket.size);
acum += dataPacket.size;
proBar = updateProgressBar(acum, packet.size, &percentage);
if(visMode != 0)
printProgressBar(proBar, percentage);
free(dataPacket.data);
}
printf("\n");
unsigned char* dump;
while(llread(port, &dump) != E_CLOSED){}
//puts("discei");
return 0;
}
int sendControlPacket(int fd, char *controlPacket, int sizeControlPacket) {
unsigned char try = 0;
while (try < MAX_TRY) {
if (llwrite(fd, controlPacket, sizeControlPacket) > 0) return OK;
try++;
}
return -1;
}
int sendInfoPacket(int fd, char *infoPacket, int sizeInfoPacket) {
unsigned char try = 0;
while (try < MAX_TRY) {
if (llwrite(fd, infoPacket, sizeInfoPacket) > 0) return OK;
try++;
}
return -1;
}
int sendFile(int fd, unsigned char fileNameSize, const char *fileName, unsigned int image_bytes_length, const char *image_bytes, unsigned int* out_already_sent_bytes) {
char controlPacket[MAX_CTRL_P];
int sizeControlPacket;
char infoPacket[MAX_INFO_P];
int sizeInfoPacket;
char info[L2 * 256 + L1]; // maximum size of info
unsigned int infoSize;
unsigned int maxInfoSize = L2 * 256 + L1;
unsigned char N = 0;
/*struct stat st;
stat(fileName, &st);
unsigned int fileSize = st.st_size; // get file size from file statistics
printf("File size: %d\n", fileSize);
FILE *file;
file = fopen(fileName, "r");
sizeControlPacket = getControlPacket(START, fileSize, fileNameSize, fileName, controlPacket); // START control packet
if (sendControlPacket(fd, controlPacket, sizeControlPacket) == OK) {
int fileChar;
while (1) {
infoSize = 0;
while ((fileChar = fgetc(file)) != EOF && infoSize < maxInfoSize) {
info[infoSize] = (char) fileChar;
infoSize++;
}
if (infoSize == 0) break;
sizeInfoPacket = getInfoPacket(N, infoSize, info, infoPacket);
if (sendInfoPacket(fd, infoPacket, sizeInfoPacket) == OK) N++;
else {
fclose(file);
return -1;
}
}*/
//(unsigned int)image_bytes_length: this casting is not the ideal solution but works for now
sizeControlPacket = getControlPacket(START, (unsigned int)image_bytes_length, fileNameSize, fileName, controlPacket); // START control packet
if (sendControlPacket(fd, controlPacket, sizeControlPacket) != OK)
return -1;
//printf("\n--fileName;%s\nimglength:%l\n", fileName, image_bytes_length);
long i = 0;
while (1) {
infoSize = 0;
while (i < image_bytes_length && infoSize < maxInfoSize) {
info[infoSize] = image_bytes[i];
infoSize++;
i++;
}
if (infoSize == 0) break;
sizeInfoPacket = getInfoPacket(N, infoSize, info, infoPacket);
if (sendInfoPacket(fd, infoPacket, sizeInfoPacket) == OK)
{
++out_already_sent_bytes;
N++;
}
else {
//fclose(file);
return -1;
}
}
controlPacket[0] = CE; // END control packet
if (sendControlPacket(fd, controlPacket, sizeControlPacket) == OK)
return OK;
return -1;
/*
controlPacket[0] = CE; // END control packet
if (sendControlPacket(fd, controlPacket, sizeControlPacket) == OK) {
fclose(file);
return OK;
}
else {
fclose(file);
return -1;
}
}
else return -1; */
}
